Oovees of metal cans



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J. BRENZINGER. MACHINE FOR LVINING GOVERS OF METAL (JANS.

v Patented Jan. 18,1898.

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J. BRENZINGBR. MACHINE EOE LINING COVERS 0E METAL GENS.

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Patented Jan. 18, 1898.

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Patented Jan, 18,1898.

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J. BRENZINGER. 1 MACHINE FOR LINING COVERS 0F METAL GANS.

Patented Jan. 18, 1898.

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J. BRENZINGER. MACHINE POR LINING COVERS 0F METAL GANS.

No. 597,886. Patented Jan. 18,1898.

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J. BRENZINGBR. MACHINE FOB, LINING COVERS 0F METAL GANS.

Patented Jan. 18, 1898.

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UNITED STATES PATENT @Erica JULIUS BRENZINGER, OF NEV YORK, N. Y., ASSIGNOR TO MAX AMS, OF SAME PLACE.

MACHINE FOR. LINING COVERS OF METAL CAMS.

SPECIFICATION forming part of Letters Patent No. 597,386, dated January 18, 1898.

Application lecl November 1, 1897. Serial No. 656,984. (No model.)

.To @ZZ whom t may concern:

Be it known that I, .TULIUs BRENZINGER, a citizen of Germany, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Machines for Lining Covers of Metal Cans, of which the following is a speciiication.

This invention relates to a machine for providing the flange of a cover for sheet-metal cans with a lining which insures an air-tight seam between can and cover when the latter is connected to the can-body by the usual lap-joint. This lining consists of an adhesive layer, such as rubber cement, and of a powder, such as asbestos, which forms a thin iilm jupon the adhesive layer. The machine rst applies the adhesive layer to the cover, then throws on the powder While the layer is still moist, and finally dries the layer, after which the cover is ready to be. joined to the can-body.

In the accompanying drawings, Figure 1 is a perspective view of a cover lined by my machine, showing the lining partly removed; Fig. 2, aside elevation of the machine with the drying-chamber partly broken away; Fig. 3, a detail of the cement feeding and applying rolls; Fig. 4:, an end view thereof; Fig. 5, a vertical cross-section oi' the machine on line 5 5, Fig. 2; Fig. 6, a rear elevation, partly in section, ofthe machine; Fig. 7, a vertical section through the powder-box on line 7 7, Fig. 6; Fig. 7, a face view of the dusting-Wheel 1"; Fig. 7b, aside view thereof; Fig. 8, aplan of the chute CZ for conveying the covers to the powder-box; Fig. 9, a detail sectional elevation of the front part of the machine, showing the stops and clamps; Fig. 10, asectional front elevation of the machine; Fig. 11, a section on line 11 11, Fig. 9; Fig. 12, a detail of cam 0.8; Fig. 13, a detail of cam all; Fig. 14, an elevation similar to Fig. 10, showing the parts in a different position; Fig. 15, afurther partial elevation of the machine, showing the parts in a still different position; Fig. 16, a detail of the guides al@ for conveying the covers to the clamp; Fig. 17, a detail of auxiliary lever @15; Fig. 18, a section on line 5o 18 18, Fig. 15; Fig. 19, a sectional detail of the clamp a3 c; Fig. 20, a sectional elevation of the drying-chamber m; Fig. 21, a plan thereof with the cover removed; Fig. 22, an elevation of a modification of the cementing mechanism, showing the same adapted for square covers; Fig. 23, a plan thereof; Fig. 24, a plan view of the powder-box used in connection therewith, and Fig. 25 a sectional elevation thereof.

The letter a represents the frame of the machine, and a' is the power-shaft that transmits motion by belt a2 to the collar d3 of the clamp that holds the cover while the adhesive layer is applied. It also transmits motion by belt ai* to the shaft d5, which operates the stops e f g and the ejectors lo, and iinalllvT it transmits motion bybelt a to a shaft al, which operates the dusting-wheel fi.

b is the hopper, mounted on one end of frame a and from which the blank covers A are guided in an upright position by a narrow inclined chute b to a clamp by which the cover is held and revolved during the application of the liquid rubber cement or other adhesive coating. This clamp consists of the rotating collar CL3 and of a reciprocating plate c, Fig. 19, fitted on a collar c', which turns loosely on its stud The plate c is moved intermittently toward and away from collar as, so as to cause the cover A. to be alternately grasped and revolved by the clamp during the application of the cement and to be then released so as to drop into an inclined chute cl, that conveys it to the powder-box- The reciprocating motion is imparted to plate o from shaft a5 by a cam os, Figs. 5 and 12, mounted upon the shaft'and operating a shifting-lever a9, that engages by'pin al a groove c3 of collar c. The shifting-lever a9 also serves to throw an upper stop c intermittently across the chute t', so as to prevent the ad Vance of the row of blanks A while the clamp is open, Fig. 14.. Motion is imparted to this stop from the lever a9 by means of a spring-actuated rockshaft ou, Fig. 9, upon which the stop is mounted and which carries a tap'pet cl2, engaged by lever c". After a blank has cleared the upper stop e it encounters a second stop f, which holds it above the clamp while the latter is closed, Fig. 10, and releases it to become engaged by the clamp as the latter is opened. The stop f is oper- IOO ated from cam as by a lever als, having nose al, which actuates an auxiliary lever aw, Fig. 17, fulcrumed on pin am. The lever @15 engages the stop f, which isinfluenced by springpressed pivoted bar f', Fig. l5, so that the stop is alternately thrown in and out by the motion of lever @15. The blank A clears the stop f while the clamp is open and is guided by adjustable guards al, Fig. lti, between thc two jaws of the clamp a3 c and upon a third stop or support g, which prevents the blank from falling through the clamp until the latter closes upon the same. The stop g is attached directly to lever am, Figs. 9 and l5, to be operated by the same. Fig. l5 shows the position of the parts as the stop g advances to support the blank A, which is liberated by the withdrawal of stop f. l

While the blank is revolved by the clamp, a layer'of liquid cement or other adhesive B, Fig. l, is applied toits flange as follows: Into the fountain 7i, containing the liquid cement or other adhesive, Figs. and a, projects a bearing-plate 7i', to which is pivoted at h2 an oscillating frame hs, within which the train of corrugated feed and distributing rolls h4, h5, h6, and hl is hung. A spring 71.8 throws the frame h3 forward, and consequently causes the distributing-roll hl' to apply the paste to blank A as the latter is held and revolved by the clamp, Fig. l0. Then the clamp opens, the blank thus properly coated drops into the inclined chute d to be by it conveyed to a box t, within which the powdered asbestos or other powdered material C is applied. lVithin this box there revolves a dusting-wheel i, Figs. (i and 7, provided with a number of stirringfingers t2 and scoops i3. The blank A drops upon a seat of the wheel formed between the two blades of the scoops, and thus the powder stirred up by fingers i2 is thrown against the moist adhesive coatingto adhere to the blank.

In order to increase the capacity of the dusting-wheel t, l prefer to make it of duplex construction, Fig. G, so that it has two seats upon which the blanks are alternately guided by means of a switching-tongue j, pivoted within the chute d at 7, Fig. 8. eratedfrom shaft a5 by cam a, Fig. 13, mounted upon the shaft and engaged by a lever al?, which actuates the switching-lever C419, that shifts the tonguej, Fig. 9. The blank A remains seated upon the dusting-wheel i' for a number of revolutions and is then pushed off said wheel by means of ej ectors 7c, which throw the blank into a chute l to be conveyed to the drying-chamber fm.

The chute l has a perforated bottom, Fig. 8,-so that any surplusage or loose powder may fall through it and be conveyed by a hopper Z into a suitable receptacle Z2, Fig. 2. The ejectors 7o are suspended from the frame of the machine at one end by rollers and at the other by hangers 7s and are provided with pins k2, engaged by tappets d20, Fig. 5, mounted on shaft a5, so that the desired reciprocat- The tonguej is oping motion is imparted to the ej ectors. Within the drying-chamber m the blanks A fall with their coated and dusted side downward upon a perforated disk m', revolved by chain m2, Figs. 2O and 2l. Above the Lipper face of this disk are fixed two eccentric guides lm3 m4, of which the guide mgpnshes the blanks toward the periphery of the disk after one revolution of the same, while the guide nl* pushes the blanks off the disk after the second revolution to fall into a suitable receptacle.

Beneath the disk m is placed a heatingeoil m5, which causes the blanks to be properly dried while lying upon the disk. It will thus be seen that by my mach-ine theblanks are fed singly to the clamp and are then grasped and revolved by the latter. this revolution the adhesive coatingis applied by roller hl, after which the clamp opens and the coated blank rolls down the chute d onto the dusting-wheel fi', alternate blanks being by the tongue ,7' guided to opposite seats of the wheel, so that the capacity of the latter is doubled. The blanks remain seated upon the wheel until the adhesive coating has been covered with a thin film of powder, and then the ejectors 7c push the powdered blanks ott the wheel and into the chute Z to roll upon the revolving disk m of the dryingchamber. Here the blanks are subjected to the action of the heating-coil m5 during a few revolutions of the disk, to be iinally thrown into a suitable receptacle ready for use.

In Figs. 22 to 25 the machine is shown to be adapted for lining rectangular covers. Here the blank A is supported in an uprightposition upon the stop g described by means of a pair of upright plates n.v The edge of the blank is held against the faces of a pair of feed-rollers 0, revolved from shaft o5 by means of a pressure-roller o', mounted upon a springactuated lever o2. This lever is fulcrumed to a second spring-actuated lever o3, engaged by a lever o4, which is operated by one of the cams of the machine. As the wheels o are revolved they rotate the cover and bring its flange into 'contact with the cement-applying roller h?. After the cover has been properly coated the-pressure-roller o is withdrawn by the action of lever 04, which tilts lever o5 and causes aprojection 06 on lever o2 to engage an inclined fixed stop 07, so that the roller o is s'wung away from rollers o. thus released drops upon an endless feedapron p, which conducts it upon a revoluble perforated plate or screen q within the powder-chamber z'. The dusting-wheel q' has wings q2 and revolves beneath the screen q, so as to throw the powder upon the lower coated ange of the blank. A fixed inclined guide qs conducts the blank oft the screen after a complete revolution of the latter.

l. A machine for lining covers, composed of an opening and closing clamp adapted to revolve the cover, means for applying a moist D urin g The blank beingl IIO rig

adhesive coating to the cover while held by the clamp, and means for applying a powdered film to the moist coating, substantialbT as specified.

2. A machine for lining covers, composed of an opening and closing clamp adapted to revolve the cover, means for applying a moist adhesive coating to the cover While held`by the clamp, means for applying a powdered film to the moist coating and means for drying the coating, substantially as specified.

3. A machine for lining covers, composed of means for revolving thc cover, a fountain for holding an adhesive material, means for conveying the adhesive material from the fountain to the cover as the latter is revolved, a powder-box, a rrotating Wheel Within the same, and means for conveying the cover to the powder-box, substantially as specified.

et. In a machine for lining covers, the comhination of a clamp for holding and revolving the covers with a fountain for holding an adhesive material, means for conveying the adhesive material from the fountain to the covers as the latter are revolved, stops for retarding the motion of the covers as they are fed to the clamp, and means for operating the. stops, substantially as specified.

5. In a machine for lining covers, the combination of means for revolving the cover, with a fountain for holding an adhesive material, means for applying the adhesive material to the cover as the latter is revolved, a

duplex d usting-wheel havin g two cover-seats, means for conveying the cover to the dusting-Wheel, and a switching-tongue for oonveying alternate covers to opposite seats on the Wheel, substantially as specified.

3. In a machine for lining covers, the combination of a clamp for revolving the cover, With a fountain for holding an adhesive material, means for applying the adhesive mate rial to the cover as the latter is revolved, a

. series of stops to retard the motion of the cover, a powder-box, a'dusting-Wheel having a series of scoops and fingers and means for conveying the coverto the dnsting-Wheehsuhstantiall5T as specified.

7. In a machine for lining covers, the conlbination of a fountain for holding an adhesive material with means for applying a moist adhesive coating to the cover, apoWder-boX, means for applying a powdered lm to the moist coating, a drying-chamber, a revolving plate and eccentric guide Within the chamber, and means for feeding the cover fromthe powder-box to the revolving plate, substantially as specified.

Signed at New York, in the county of New York and State of New York, this 15th day of October, A. D. 1897.

JULIUS BRENZINGER. 

